I don't know about the knots and have only come upon the photo of the Postschutz man wearing this dagger in the past couple of years. It came from a collector of belt buckles in Germany and the detail is super. I tried to buy the original photo, but no sale so I got a rather good copy.
It is unpublished, so you didn't miss seeing it in any book.
I have always hoped someone would come across the listing of numbers for the organizations. This COULD be possible as the TeNo origanization still exists in Germany today and someone may find some original paperwork at some point as I don't believe everything is destroyed, but don't know about the Postschutz numbers, especially since many of the daggers are not numbered and were issued later IMO.
Ron Weinand
